After an earthquake, a cave opens on the legendary Mount Ararat, to which researchers immediately rush in the hope of finding the biblical ark. Everyone has their own goals: Meriam and Adam want to become famous, secret agent Walker is looking for weapons for the government, priest Cornelius is looking for evidence of the truth of the Bible, others are simply involved in a high-profile project. But what awaits them in the cave will exceed their wildest expectations, penetrate their soul, and stain it. This is proof of the existence of the devil.